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Martin chain #25 · E-17

25B20SS

Exact stock sprocket record from Martin's official Roller Chain Sprockets catalog.

Chain#25Pitch0.25"Teeth20Stylesingle stainless stock sprocketsOfficial source ↗

Published catalog evidence

Exact source record

E-17
Catalog number
25B20SS
Chain designation
25
Chain pitch
0.25"
Number of teeth
20
Material context
stainless steel
Sprocket style
single stainless stock sprockets
Published row text
20 25B20SS 1 .728 B .25 .875 1 .281 .625 .25

Verification boundary

What still needs to match

Do not infer interchange
Chain and strand countConfirm ANSI/ISO chain standard, pitch, roller width, and simplex/duplex/triplex arrangement.
Bore and hub systemVerify stock/finished bore, QD or taper-bushing size, hub style, keyway, setscrews, and shaft fit.
Material and teethConfirm steel/stainless material, hardened-tooth suffixes, corrosion requirements, and tooth count.
DutyCheck speed, horsepower, alignment, lubrication, shock loading, and current manufacturer limits.

Related catalog parts

Same chain family, nearby tooth count

8
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